Running Rich
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 3,479
Likes: 92
From: Between Tally and Gatorville ,Florida
Running Rich
My engine runs normal at start up but after a few minutes It starts to run rich. Blows light grey smoke out of the tail pipe . When I pull all the spark plugs they are soaked in fuel. Also if I don't pull the plugs and dried them the car will not restart. Sometimes it will if I have WOT. I pulled the codes and got code P0102, Which means the MAF sensor does not sense much air flow. I replaced the MAF with a new one, ran a continuity check on the wires ( OK ) and I still have the same problem. Sometimes it give code P0102 and sometime it doesn't but engine still runs very rich regarless.
Any advise would be greatly appreciated.
Any advise would be greatly appreciated.
Supporting Vendor
Joined: Sep 2013
Posts: 3,099
Likes: 1,270
From: Harbor City California
could the engine be running rich to make up for a lean condition it think its experiencing? Have you checked for a vacuum leak? Are you sure your injectors arnt leaking. It is possible that all leak a little bit. We get some injectors with test sheets that look horrible before the rebuild.
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 3,479
Likes: 92
From: Between Tally and Gatorville ,Florida
could the engine be running rich to make up for a lean condition it think its experiencing? Have you checked for a vacuum leak? Are you sure your injectors arnt leaking. It is possible that all leak a little bit. We get some injectors with test sheets that look horrible before the rebuild.
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 3,479
Likes: 92
From: Between Tally and Gatorville ,Florida
No codes other than P102 but, I have replaced it with no improvement. I did noticed the connector a little deformed and as I said found the small vacuum hose on the rear of the intake broken off. I've order a new connector and have repaired the hose. I'm hoping once the connector is replaced my issues will go away.
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
What year car do you have? P0102 isn't a code on 2002-2004 cars and is a code on 2000 and 2001 cars but the diagnostics are different for each year. Remember codes don't tell you what to replace (MAF) but where to look. P0102 just tells you the MAF is reading an incorrect value but it doesn't indicate whether the MAF is bad (could be) or something else in the electrical circuit or something mechanical like a vacuum leak is causing the incorrect reading.
I am attaching the Diagnostic for the 2000 model year. It is similar to the 2001 model year but has several less diagnostic steps. There are several steps that call for the use of a Tech 2 but you can work around those types of things by reading and determining how you can use shorting wires and a DMM to make the same measurements.
Bill
I am attaching the Diagnostic for the 2000 model year. It is similar to the 2001 model year but has several less diagnostic steps. There are several steps that call for the use of a Tech 2 but you can work around those types of things by reading and determining how you can use shorting wires and a DMM to make the same measurements.
Bill
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 3,479
Likes: 92
From: Between Tally and Gatorville ,Florida
No codes other than P102 but, I have replaced it with no improvement. I did noticed the connector a little deformed and as I said found the small vacuum hose on the rear of the intake broken off. I've order a new connector and have repaired the hose. I'm hoping once the connector is replaced my issues will go away.
Thanks guys! Your inputs always make it easy and fun.
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